Yeah, this isn't planet Earth. Some of us don't even come from the same planet Earth? It's a little complicated to understand if I stop and think too much about it, but evidence backs up that theory...

[is realising that ed is not really into these kind of news]

You can find more information on your bracelet! [he points at his own, clasped around his left wrist] And you can ask URSULA questions, too. She's the AI that looks after us here.